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United States Patent | 6,073,316 |
Ferrario ,   et al. | June 13, 2000 |
A clasp fastener having a clasp (1) is designed to be snapped into engagement by exerting a closing force. A locking device (4) for locking the clasp (1) is placed by the closing force in an engaged position in which it is in a first snap engagement with a locking projection (6), and a closing member (5) for closing the clasp (1) is fixed by the closing force in a safety position in which it is in a second snap engagement with the locking device (4) so that the snapping force of the first engagement of the clasp (1) with the locking projection (6) is increased. At least one variable-diameter pin (17,18) that is flexible and/or has different diameters allows some movement of the locking device (4), so that the effective closing force exerted on the locking projection (6) is reduced.
Inventors: | Ferrario; Luigi (Hauterive, CH); Gay; Jacques Hubert (Vandoeuvres-Geneve, CH) |
Assignee: | Montres Rolex S.A. (Geneva, CH) |
Appl. No.: | 029820 |
Filed: | May 6, 1999 |
PCT Filed: | March 14, 1996 |
PCT NO: | PCT/CH96/00096 |
371 Date: | March 18, 1998 |
102(e) Date: | March 18, 1998 |
PCT PUB.NO.: | WO96/31138 |
PCT PUB. Date: | October 10, 1996 |
Apr 04, 1905[CH] | 962/95 |
Current U.S. Class: | 24/71J; 24/71R |
Intern'l Class: | A44C 005/24 |
Field of Search: | 24/68 J,69 J,70 J,71 J,265 WS,265 BL,68 T,68 E,265 B,616,625 224/174,175,176 |
2532840 | Dec., 1950 | Gaun | 24/71. |
5331723 | Jul., 1994 | Mathieu | 24/71. |
5689859 | Nov., 1997 | Cuche | 24/71. |
5857243 | Jan., 1999 | Champion | 24/71. |
Foreign Patent Documents | |||
661609 | Nov., 1951 | GB | 24/71. |